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Uptake of Microparticles from Bio-Based Biodegradable Plastics by Aquatic Invertebrates
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Researchers tested whether aquatic invertebrates take up microparticles shed from bio-based biodegradable plastics compared to conventional plastics like polystyrene, finding that organisms interacted with both types. This matters because biodegradable plastics are often promoted as safe alternatives, but if their breakdown particles are still ingested by aquatic animals they can enter food chains affecting humans.
Microplastics are found in all terrestrial and aquatic habitats. They accumulate in marine environments and can interact with organisms, leading to deleterious effects. Microplastics from conventional polymers such as polystyrene (PS) or polyethylene (PE) are known...
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Environmental Fate and Effects of Microplastics on Organisms
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This review examined the environmental fate of microplastics — including fragmentation dynamics, sorption of co-contaminants, and bioaccumulation through food webs — alongside their toxic effects on organisms ranging from invertebrates to mammals. Understanding how plastics persist, concentrate toxicants, and biomagnify through trophic levels is essential for predicting long-term health consequences for wildlife and human consumers.
Occurrence, Fate, and Biodegradation of Microplastics in Marine Environments
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Researchers reviewed how microplastics — synthetic polymer fragments smaller than 5mm — spread through marine environments, persist over long periods, and undergo partial biodegradation. The widespread distribution of these particles in oceans raises ongoing concerns about their effects on marine life and the humans who eat seafood.
Micro/nanoplastics in Aquatic Ecosystems: An Integrated Review of Occurrence, Toxicological Implications, Case Studies, Methodologies, and Future Recommendations
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This integrated review covers the occurrence, toxicology, and detection of micro- and nanoplastics across freshwater, marine, and estuarine ecosystems, using case studies to illustrate biomagnification through aquatic food webs and the compounding risk from co-occurring chemical contaminants. The review calls for stronger international collaboration and policy frameworks grounded in scientific evidence, recognizing that the pervasive nature of micro- and nanoplastics in aquatic systems poses escalating risks to both ecosystem integrity and human health.
Introduction to Microplastics: Origin, Environmental Pathways, and Impacts on Ecosystems and Human Health
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Researchers introduced the origins, environmental transport pathways, and ecosystem impacts of microplastics, tracing how the non-biodegradable nature of plastics combined with poor waste management has driven pollution of terrestrial, aquatic, and human biological systems.
Approaches for Environmental Impact Assessment of Bio-Based Plastics, Microplastics, and Nanoplastics Applied to Aquatic Environments
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Researchers assessed environmental impact methods for bio-based plastics, microplastics, and nanoplastics in aquatic environments, finding that current evaluation frameworks struggle to keep pace with the complexity of these materials. Better impact assessment tools are essential for understanding how plastic particles of all sizes accumulate in oceans and affect aquatic life.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.